Home / 257,923.20-387,176.40-152,801.40

Finding the Fourth Proportional to 257,923.20, 387,176.40 and 152,801.40

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Solution

The fourth proportional to 257,923.20, 387,176.40 and 152,801.40 is: 229,374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,923.20 : 387,176.40 = 152,801.40 : x
  2. Step 2: Convert to fraction form
    257,923.20/387,176.40 = 152,801.40/x
  3. Step 3: Cross multiply
    257,923.20x = 387,176.40 × 152,801.40
  4. Step 4: Simplify right side
    257,923.20x = 59,161,095,966.96
  5. Step 5: Solve for x
    x = 59,161,095,966.96/257,923.20
  6. Step 6: Final answer
    x = 229,374.85

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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.