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Finding the Fourth Proportional to 342,128.02, 472,032.98 and 238,759.47

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Solution

The fourth proportional to 342,128.02, 472,032.98 and 238,759.47 is: 329,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,128.02 : 472,032.98 = 238,759.47 : x
  2. Step 2: Convert to fraction form
    342,128.02/472,032.98 = 238,759.47/x
  3. Step 3: Cross multiply
    342,128.02x = 472,032.98 × 238,759.47
  4. Step 4: Simplify right side
    342,128.02x = 112,702,340,573.36
  5. Step 5: Solve for x
    x = 112,702,340,573.36/342,128.02
  6. Step 6: Final answer
    x = 329,415.70

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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.