Home / 252,309.12-348,140.80-155,477.76

Finding the Fourth Proportional to 252,309.12, 348,140.80 and 155,477.76

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Solution

The fourth proportional to 252,309.12, 348,140.80 and 155,477.76 is: 214,531.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,309.12 : 348,140.80 = 155,477.76 : x
  2. Step 2: Convert to fraction form
    252,309.12/348,140.80 = 155,477.76/x
  3. Step 3: Cross multiply
    252,309.12x = 348,140.80 × 155,477.76
  4. Step 4: Simplify right side
    252,309.12x = 54,128,151,748.61
  5. Step 5: Solve for x
    x = 54,128,151,748.61/252,309.12
  6. Step 6: Final answer
    x = 214,531.09

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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.