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Finding the Fourth Proportional to 257,632.60, 355,533.14 and 157,030.60

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Solution

The fourth proportional to 257,632.60, 355,533.14 and 157,030.60 is: 216,702.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,632.60 : 355,533.14 = 157,030.60 : x
  2. Step 2: Convert to fraction form
    257,632.60/355,533.14 = 157,030.60/x
  3. Step 3: Cross multiply
    257,632.60x = 355,533.14 × 157,030.60
  4. Step 4: Simplify right side
    257,632.60x = 55,829,582,294.08
  5. Step 5: Solve for x
    x = 55,829,582,294.08/257,632.60
  6. Step 6: Final answer
    x = 216,702.32

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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.