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Finding the Fourth Proportional to 587,307.80, 881,192.10 and 213,368.60

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Solution

The fourth proportional to 587,307.80, 881,192.10 and 213,368.60 is: 320,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,307.80 : 881,192.10 = 213,368.60 : x
  2. Step 2: Convert to fraction form
    587,307.80/881,192.10 = 213,368.60/x
  3. Step 3: Cross multiply
    587,307.80x = 881,192.10 × 213,368.60
  4. Step 4: Simplify right side
    587,307.80x = 188,018,724,708.06
  5. Step 5: Solve for x
    x = 188,018,724,708.06/587,307.80
  6. Step 6: Final answer
    x = 320,136.60

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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.