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Finding the Fourth Proportional to 242,312.47, 334,494.59 and 172,506.76

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Solution

The fourth proportional to 242,312.47, 334,494.59 and 172,506.76 is: 238,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,312.47 : 334,494.59 = 172,506.76 : x
  2. Step 2: Convert to fraction form
    242,312.47/334,494.59 = 172,506.76/x
  3. Step 3: Cross multiply
    242,312.47x = 334,494.59 × 172,506.76
  4. Step 4: Simplify right side
    242,312.47x = 57,702,576,259.66
  5. Step 5: Solve for x
    x = 57,702,576,259.66/242,312.47
  6. Step 6: Final answer
    x = 238,132.92

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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.