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Finding the Fourth Proportional to 475,368.83, 656,011.27 and 257,577.45

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Solution

The fourth proportional to 475,368.83, 656,011.27 and 257,577.45 is: 355,458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,368.83 : 656,011.27 = 257,577.45 : x
  2. Step 2: Convert to fraction form
    475,368.83/656,011.27 = 257,577.45/x
  3. Step 3: Cross multiply
    475,368.83x = 656,011.27 × 257,577.45
  4. Step 4: Simplify right side
    475,368.83x = 168,973,707,959.79
  5. Step 5: Solve for x
    x = 168,973,707,959.79/475,368.83
  6. Step 6: Final answer
    x = 355,458.12

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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.