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Finding the Fourth Proportional to 360,213.34, 540,320.02 and 138,545.50

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Solution

The fourth proportional to 360,213.34, 540,320.02 and 138,545.50 is: 207,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,213.34 : 540,320.02 = 138,545.50 : x
  2. Step 2: Convert to fraction form
    360,213.34/540,320.02 = 138,545.50/x
  3. Step 3: Cross multiply
    360,213.34x = 540,320.02 × 138,545.50
  4. Step 4: Simplify right side
    360,213.34x = 74,858,907,330.91
  5. Step 5: Solve for x
    x = 74,858,907,330.91/360,213.34
  6. Step 6: Final answer
    x = 207,818.25

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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.