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Finding the Fourth Proportional to 340,329.80, 469,646.54 and 187,366.47

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Solution

The fourth proportional to 340,329.80, 469,646.54 and 187,366.47 is: 258,561.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,329.80 : 469,646.54 = 187,366.47 : x
  2. Step 2: Convert to fraction form
    340,329.80/469,646.54 = 187,366.47/x
  3. Step 3: Cross multiply
    340,329.80x = 469,646.54 × 187,366.47
  4. Step 4: Simplify right side
    340,329.80x = 87,996,014,347.51
  5. Step 5: Solve for x
    x = 87,996,014,347.51/340,329.80
  6. Step 6: Final answer
    x = 258,561.00

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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.