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Finding the Fourth Proportional to 346,686.90, 520,030.35 and 169,307.70

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Solution

The fourth proportional to 346,686.90, 520,030.35 and 169,307.70 is: 253,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,686.90 : 520,030.35 = 169,307.70 : x
  2. Step 2: Convert to fraction form
    346,686.90/520,030.35 = 169,307.70/x
  3. Step 3: Cross multiply
    346,686.90x = 520,030.35 × 169,307.70
  4. Step 4: Simplify right side
    346,686.90x = 88,045,142,488.70
  5. Step 5: Solve for x
    x = 88,045,142,488.70/346,686.90
  6. Step 6: Final answer
    x = 253,961.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.