Home / 288,618.06-432,991-99,074.18

Finding the Fourth Proportional to 288,618.06, 432,991 and 99,074.18

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Solution

The fourth proportional to 288,618.06, 432,991 and 99,074.18 is: 148,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,618.06 : 432,991 = 99,074.18 : x
  2. Step 2: Convert to fraction form
    288,618.06/432,991 = 99,074.18/x
  3. Step 3: Cross multiply
    288,618.06x = 432,991 × 99,074.18
  4. Step 4: Simplify right side
    288,618.06x = 42,898,228,272.38
  5. Step 5: Solve for x
    x = 42,898,228,272.38/288,618.06
  6. Step 6: Final answer
    x = 148,633.21

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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.