Home / 399,631.04-599,682.98-147,088.90

Finding the Fourth Proportional to 399,631.04, 599,682.98 and 147,088.90

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Solution

The fourth proportional to 399,631.04, 599,682.98 and 147,088.90 is: 220,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,631.04 : 599,682.98 = 147,088.90 : x
  2. Step 2: Convert to fraction form
    399,631.04/599,682.98 = 147,088.90/x
  3. Step 3: Cross multiply
    399,631.04x = 599,682.98 × 147,088.90
  4. Step 4: Simplify right side
    399,631.04x = 88,206,710,994.25
  5. Step 5: Solve for x
    x = 88,206,710,994.25/399,631.04
  6. Step 6: Final answer
    x = 220,720.37

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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.