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Finding the Fourth Proportional to 278,016.79, 417,025.19 and 240,465.32

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Solution

The fourth proportional to 278,016.79, 417,025.19 and 240,465.32 is: 360,697.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,016.79 : 417,025.19 = 240,465.32 : x
  2. Step 2: Convert to fraction form
    278,016.79/417,025.19 = 240,465.32/x
  3. Step 3: Cross multiply
    278,016.79x = 417,025.19 × 240,465.32
  4. Step 4: Simplify right side
    278,016.79x = 100,280,095,761.41
  5. Step 5: Solve for x
    x = 100,280,095,761.41/278,016.79
  6. Step 6: Final answer
    x = 360,697.98

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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.