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Finding the Fourth Proportional to 346,034.16, 477,258.48 and 218,663.28

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Solution

The fourth proportional to 346,034.16, 477,258.48 and 218,663.28 is: 301,585.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,034.16 : 477,258.48 = 218,663.28 : x
  2. Step 2: Convert to fraction form
    346,034.16/477,258.48 = 218,663.28/x
  3. Step 3: Cross multiply
    346,034.16x = 477,258.48 × 218,663.28
  4. Step 4: Simplify right side
    346,034.16x = 104,358,904,644.61
  5. Step 5: Solve for x
    x = 104,358,904,644.61/346,034.16
  6. Step 6: Final answer
    x = 301,585.56

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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.