Home / 288,209.07-432,312.66-77,847.08

Finding the Fourth Proportional to 288,209.07, 432,312.66 and 77,847.08

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Solution

The fourth proportional to 288,209.07, 432,312.66 and 77,847.08 is: 116,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,209.07 : 432,312.66 = 77,847.08 : x
  2. Step 2: Convert to fraction form
    288,209.07/432,312.66 = 77,847.08/x
  3. Step 3: Cross multiply
    288,209.07x = 432,312.66 × 77,847.08
  4. Step 4: Simplify right side
    288,209.07x = 33,654,276,066.47
  5. Step 5: Solve for x
    x = 33,654,276,066.47/288,209.07
  6. Step 6: Final answer
    x = 116,770.36

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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.