Home / 288,538.17-432,840.06-99,012.75

Finding the Fourth Proportional to 288,538.17, 432,840.06 and 99,012.75

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Solution

The fourth proportional to 288,538.17, 432,840.06 and 99,012.75 is: 148,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,538.17 : 432,840.06 = 99,012.75 : x
  2. Step 2: Convert to fraction form
    288,538.17/432,840.06 = 99,012.75/x
  3. Step 3: Cross multiply
    288,538.17x = 432,840.06 × 99,012.75
  4. Step 4: Simplify right side
    288,538.17x = 42,856,684,650.77
  5. Step 5: Solve for x
    x = 42,856,684,650.77/288,538.17
  6. Step 6: Final answer
    x = 148,530.38

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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.