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Finding the Fourth Proportional to 342,358.04, 472,445.26 and 189,392.28

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Solution

The fourth proportional to 342,358.04, 472,445.26 and 189,392.28 is: 261,356.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,358.04 : 472,445.26 = 189,392.28 : x
  2. Step 2: Convert to fraction form
    342,358.04/472,445.26 = 189,392.28/x
  3. Step 3: Cross multiply
    342,358.04x = 472,445.26 × 189,392.28
  4. Step 4: Simplify right side
    342,358.04x = 89,477,484,966.59
  5. Step 5: Solve for x
    x = 89,477,484,966.59/342,358.04
  6. Step 6: Final answer
    x = 261,356.46

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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.