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Finding the Fourth Proportional to 615,151.70, 922,727.55 and 260,047.70

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Solution

The fourth proportional to 615,151.70, 922,727.55 and 260,047.70 is: 390,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,151.70 : 922,727.55 = 260,047.70 : x
  2. Step 2: Convert to fraction form
    615,151.70/922,727.55 = 260,047.70/x
  3. Step 3: Cross multiply
    615,151.70x = 922,727.55 × 260,047.70
  4. Step 4: Simplify right side
    615,151.70x = 239,953,177,104.14
  5. Step 5: Solve for x
    x = 239,953,177,104.14/615,151.70
  6. Step 6: Final answer
    x = 390,071.55

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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.