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Finding the Fourth Proportional to 288,417.92, 398,024.75 and 159,364.71

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Solution

The fourth proportional to 288,417.92, 398,024.75 and 159,364.71 is: 219,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,417.92 : 398,024.75 = 159,364.71 : x
  2. Step 2: Convert to fraction form
    288,417.92/398,024.75 = 159,364.71/x
  3. Step 3: Cross multiply
    288,417.92x = 398,024.75 × 159,364.71
  4. Step 4: Simplify right side
    288,417.92x = 63,431,099,254.98
  5. Step 5: Solve for x
    x = 63,431,099,254.98/288,417.92
  6. Step 6: Final answer
    x = 219,927.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.