Home / 209,423.98-288,846.71-145,001.04

Finding the Fourth Proportional to 209,423.98, 288,846.71 and 145,001.04

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Solution

The fourth proportional to 209,423.98, 288,846.71 and 145,001.04 is: 199,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,423.98 : 288,846.71 = 145,001.04 : x
  2. Step 2: Convert to fraction form
    209,423.98/288,846.71 = 145,001.04/x
  3. Step 3: Cross multiply
    209,423.98x = 288,846.71 × 145,001.04
  4. Step 4: Simplify right side
    209,423.98x = 41,883,071,543.84
  5. Step 5: Solve for x
    x = 41,883,071,543.84/209,423.98
  6. Step 6: Final answer
    x = 199,991.77

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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.