Home / 257,536.08-386,271.20-99,656.48

Finding the Fourth Proportional to 257,536.08, 386,271.20 and 99,656.48

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Solution

The fourth proportional to 257,536.08, 386,271.20 and 99,656.48 is: 149,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,536.08 : 386,271.20 = 99,656.48 : x
  2. Step 2: Convert to fraction form
    257,536.08/386,271.20 = 99,656.48/x
  3. Step 3: Cross multiply
    257,536.08x = 386,271.20 × 99,656.48
  4. Step 4: Simplify right side
    257,536.08x = 38,494,428,117.38
  5. Step 5: Solve for x
    x = 38,494,428,117.38/257,536.08
  6. Step 6: Final answer
    x = 149,471.98

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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.