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Finding the Fourth Proportional to 508,795.80, 763,210.28 and 255,938.48

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Solution

The fourth proportional to 508,795.80, 763,210.28 and 255,938.48 is: 383,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,795.80 : 763,210.28 = 255,938.48 : x
  2. Step 2: Convert to fraction form
    508,795.80/763,210.28 = 255,938.48/x
  3. Step 3: Cross multiply
    508,795.80x = 763,210.28 × 255,938.48
  4. Step 4: Simplify right side
    508,795.80x = 195,334,878,983.57
  5. Step 5: Solve for x
    x = 195,334,878,983.57/508,795.80
  6. Step 6: Final answer
    x = 383,916.06

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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.