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Finding the Fourth Proportional to 340,031.57, 469,243.56 and 187,066.47

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Solution

The fourth proportional to 340,031.57, 469,243.56 and 187,066.47 is: 258,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,031.57 : 469,243.56 = 187,066.47 : x
  2. Step 2: Convert to fraction form
    340,031.57/469,243.56 = 187,066.47/x
  3. Step 3: Cross multiply
    340,031.57x = 469,243.56 × 187,066.47
  4. Step 4: Simplify right side
    340,031.57x = 87,779,736,339.43
  5. Step 5: Solve for x
    x = 87,779,736,339.43/340,031.57
  6. Step 6: Final answer
    x = 258,151.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.