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Finding the Fourth Proportional to 282,482.90, 389,829.22 and 153,423.89

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Solution

The fourth proportional to 282,482.90, 389,829.22 and 153,423.89 is: 211,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,482.90 : 389,829.22 = 153,423.89 : x
  2. Step 2: Convert to fraction form
    282,482.90/389,829.22 = 153,423.89/x
  3. Step 3: Cross multiply
    282,482.90x = 389,829.22 × 153,423.89
  4. Step 4: Simplify right side
    282,482.90x = 59,809,114,600.95
  5. Step 5: Solve for x
    x = 59,809,114,600.95/282,482.90
  6. Step 6: Final answer
    x = 211,726.50

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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.