Home / 293,320.20-440,855.10-288,071.40

Finding the Fourth Proportional to 293,320.20, 440,855.10 and 288,071.40

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Solution

The fourth proportional to 293,320.20, 440,855.10 and 288,071.40 is: 432,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,320.20 : 440,855.10 = 288,071.40 : x
  2. Step 2: Convert to fraction form
    293,320.20/440,855.10 = 288,071.40/x
  3. Step 3: Cross multiply
    293,320.20x = 440,855.10 × 288,071.40
  4. Step 4: Simplify right side
    293,320.20x = 126,997,745,854.14
  5. Step 5: Solve for x
    x = 126,997,745,854.14/293,320.20
  6. Step 6: Final answer
    x = 432,966.25

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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.