Home / 319,459.10-479,188.65-97,814.30

Finding the Fourth Proportional to 319,459.10, 479,188.65 and 97,814.30

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Solution

The fourth proportional to 319,459.10, 479,188.65 and 97,814.30 is: 146,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,459.10 : 479,188.65 = 97,814.30 : x
  2. Step 2: Convert to fraction form
    319,459.10/479,188.65 = 97,814.30/x
  3. Step 3: Cross multiply
    319,459.10x = 479,188.65 × 97,814.30
  4. Step 4: Simplify right side
    319,459.10x = 46,871,502,367.70
  5. Step 5: Solve for x
    x = 46,871,502,367.70/319,459.10
  6. Step 6: Final answer
    x = 146,721.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.