Home / 265,312.20-397,385.10-159,947.40

Finding the Fourth Proportional to 265,312.20, 397,385.10 and 159,947.40

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Solution

The fourth proportional to 265,312.20, 397,385.10 and 159,947.40 is: 239,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,312.20 : 397,385.10 = 159,947.40 : x
  2. Step 2: Convert to fraction form
    265,312.20/397,385.10 = 159,947.40/x
  3. Step 3: Cross multiply
    265,312.20x = 397,385.10 × 159,947.40
  4. Step 4: Simplify right side
    265,312.20x = 63,560,713,543.74
  5. Step 5: Solve for x
    x = 63,560,713,543.74/265,312.20
  6. Step 6: Final answer
    x = 239,569.51

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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.