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Finding the Fourth Proportional to 278,153.57, 417,262.93 and 88,547.51

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Solution

The fourth proportional to 278,153.57, 417,262.93 and 88,547.51 is: 132,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,153.57 : 417,262.93 = 88,547.51 : x
  2. Step 2: Convert to fraction form
    278,153.57/417,262.93 = 88,547.51/x
  3. Step 3: Cross multiply
    278,153.57x = 417,262.93 × 88,547.51
  4. Step 4: Simplify right side
    278,153.57x = 36,947,594,288.59
  5. Step 5: Solve for x
    x = 36,947,594,288.59/278,153.57
  6. Step 6: Final answer
    x = 132,831.64

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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.