Home / 257,631.60-355,531.76-157,029.60

Finding the Fourth Proportional to 257,631.60, 355,531.76 and 157,029.60

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Solution

The fourth proportional to 257,631.60, 355,531.76 and 157,029.60 is: 216,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,631.60 : 355,531.76 = 157,029.60 : x
  2. Step 2: Convert to fraction form
    257,631.60/355,531.76 = 157,029.60/x
  3. Step 3: Cross multiply
    257,631.60x = 355,531.76 × 157,029.60
  4. Step 4: Simplify right side
    257,631.60x = 55,829,009,274.95
  5. Step 5: Solve for x
    x = 55,829,009,274.95/257,631.60
  6. Step 6: Final answer
    x = 216,700.94

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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.