Home / 278,381.46-417,572.10-100,888.14

Finding the Fourth Proportional to 278,381.46, 417,572.10 and 100,888.14

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Solution

The fourth proportional to 278,381.46, 417,572.10 and 100,888.14 is: 151,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,381.46 : 417,572.10 = 100,888.14 : x
  2. Step 2: Convert to fraction form
    278,381.46/417,572.10 = 100,888.14/x
  3. Step 3: Cross multiply
    278,381.46x = 417,572.10 × 100,888.14
  4. Step 4: Simplify right side
    278,381.46x = 42,128,072,484.89
  5. Step 5: Solve for x
    x = 42,128,072,484.89/278,381.46
  6. Step 6: Final answer
    x = 151,332.18

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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.