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Finding the Fourth Proportional to 340,307.98, 469,616.72 and 187,344.94

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Solution

The fourth proportional to 340,307.98, 469,616.72 and 187,344.94 is: 258,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,307.98 : 469,616.72 = 187,344.94 : x
  2. Step 2: Convert to fraction form
    340,307.98/469,616.72 = 187,344.94/x
  3. Step 3: Cross multiply
    340,307.98x = 469,616.72 × 187,344.94
  4. Step 4: Simplify right side
    340,307.98x = 87,980,316,231.40
  5. Step 5: Solve for x
    x = 87,980,316,231.40/340,307.98
  6. Step 6: Final answer
    x = 258,531.45

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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.