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Finding the Fourth Proportional to 340,521.61, 469,941.06 and 187,559.77

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Solution

The fourth proportional to 340,521.61, 469,941.06 and 187,559.77 is: 258,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,521.61 : 469,941.06 = 187,559.77 : x
  2. Step 2: Convert to fraction form
    340,521.61/469,941.06 = 187,559.77/x
  3. Step 3: Cross multiply
    340,521.61x = 469,941.06 × 187,559.77
  4. Step 4: Simplify right side
    340,521.61x = 88,142,037,127.16
  5. Step 5: Solve for x
    x = 88,142,037,127.16/340,521.61
  6. Step 6: Final answer
    x = 258,844.18

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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.