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Finding the Fourth Proportional to 310,349.40, 465,524.10 and 276,888.30

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Solution

The fourth proportional to 310,349.40, 465,524.10 and 276,888.30 is: 415,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,349.40 : 465,524.10 = 276,888.30 : x
  2. Step 2: Convert to fraction form
    310,349.40/465,524.10 = 276,888.30/x
  3. Step 3: Cross multiply
    310,349.40x = 465,524.10 × 276,888.30
  4. Step 4: Simplify right side
    310,349.40x = 128,898,176,658.03
  5. Step 5: Solve for x
    x = 128,898,176,658.03/310,349.40
  6. Step 6: Final answer
    x = 415,332.45

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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.