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Finding the Fourth Proportional to 356,321.08, 534,506.56 and 143,088.98

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Solution

The fourth proportional to 356,321.08, 534,506.56 and 143,088.98 is: 214,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,321.08 : 534,506.56 = 143,088.98 : x
  2. Step 2: Convert to fraction form
    356,321.08/534,506.56 = 143,088.98/x
  3. Step 3: Cross multiply
    356,321.08x = 534,506.56 × 143,088.98
  4. Step 4: Simplify right side
    356,321.08x = 76,482,000,167.70
  5. Step 5: Solve for x
    x = 76,482,000,167.70/356,321.08
  6. Step 6: Final answer
    x = 214,643.49

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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.