Home / 288,384.04-431,995.98-143,854.12

Finding the Fourth Proportional to 288,384.04, 431,995.98 and 143,854.12

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Solution

The fourth proportional to 288,384.04, 431,995.98 and 143,854.12 is: 215,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,384.04 : 431,995.98 = 143,854.12 : x
  2. Step 2: Convert to fraction form
    288,384.04/431,995.98 = 143,854.12/x
  3. Step 3: Cross multiply
    288,384.04x = 431,995.98 × 143,854.12
  4. Step 4: Simplify right side
    288,384.04x = 62,144,401,546.44
  5. Step 5: Solve for x
    x = 62,144,401,546.44/288,384.04
  6. Step 6: Final answer
    x = 215,491.82

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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.