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Finding the Fourth Proportional to 700.49, 1,050.12 and 353.53

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Solution

The fourth proportional to 700.49, 1,050.12 and 353.53 is: 529.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.49 : 1,050.12 = 353.53 : x
  2. Step 2: Convert to fraction form
    700.49/1,050.12 = 353.53/x
  3. Step 3: Cross multiply
    700.49x = 1,050.12 × 353.53
  4. Step 4: Simplify right side
    700.49x = 371,248.92
  5. Step 5: Solve for x
    x = 371,248.92/700.49
  6. Step 6: Final answer
    x = 529.99

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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.