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Finding the Fourth Proportional to 509,100.52, 702,548.58 and 282,738.28

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Solution

The fourth proportional to 509,100.52, 702,548.58 and 282,738.28 is: 390,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,100.52 : 702,548.58 = 282,738.28 : x
  2. Step 2: Convert to fraction form
    509,100.52/702,548.58 = 282,738.28/x
  3. Step 3: Cross multiply
    509,100.52x = 702,548.58 × 282,738.28
  4. Step 4: Simplify right side
    509,100.52x = 198,637,377,125.64
  5. Step 5: Solve for x
    x = 198,637,377,125.64/509,100.52
  6. Step 6: Final answer
    x = 390,173.20

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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.