Home / 209,461.12-288,962.40-141,456

Finding the Fourth Proportional to 209,461.12, 288,962.40 and 141,456

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Solution

The fourth proportional to 209,461.12, 288,962.40 and 141,456 is: 195,145.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,461.12 : 288,962.40 = 141,456 : x
  2. Step 2: Convert to fraction form
    209,461.12/288,962.40 = 141,456/x
  3. Step 3: Cross multiply
    209,461.12x = 288,962.40 × 141,456
  4. Step 4: Simplify right side
    209,461.12x = 40,875,465,254.40
  5. Step 5: Solve for x
    x = 40,875,465,254.40/209,461.12
  6. Step 6: Final answer
    x = 195,145.84

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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.