Home / 348,038.10-522,057.15-288,991.70

Finding the Fourth Proportional to 348,038.10, 522,057.15 and 288,991.70

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Solution

The fourth proportional to 348,038.10, 522,057.15 and 288,991.70 is: 433,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,038.10 : 522,057.15 = 288,991.70 : x
  2. Step 2: Convert to fraction form
    348,038.10/522,057.15 = 288,991.70/x
  3. Step 3: Cross multiply
    348,038.10x = 522,057.15 × 288,991.70
  4. Step 4: Simplify right side
    348,038.10x = 150,870,183,275.66
  5. Step 5: Solve for x
    x = 150,870,183,275.66/348,038.10
  6. Step 6: Final answer
    x = 433,487.55

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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.