Home / 319,148.10-478,722.15-94,543.20

Finding the Fourth Proportional to 319,148.10, 478,722.15 and 94,543.20

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Solution

The fourth proportional to 319,148.10, 478,722.15 and 94,543.20 is: 141,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,148.10 : 478,722.15 = 94,543.20 : x
  2. Step 2: Convert to fraction form
    319,148.10/478,722.15 = 94,543.20/x
  3. Step 3: Cross multiply
    319,148.10x = 478,722.15 × 94,543.20
  4. Step 4: Simplify right side
    319,148.10x = 45,259,923,971.88
  5. Step 5: Solve for x
    x = 45,259,923,971.88/319,148.10
  6. Step 6: Final answer
    x = 141,814.80

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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.