Home / 284,030.40-391,980.96-163,211.04

Finding the Fourth Proportional to 284,030.40, 391,980.96 and 163,211.04

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Solution

The fourth proportional to 284,030.40, 391,980.96 and 163,211.04 is: 225,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,030.40 : 391,980.96 = 163,211.04 : x
  2. Step 2: Convert to fraction form
    284,030.40/391,980.96 = 163,211.04/x
  3. Step 3: Cross multiply
    284,030.40x = 391,980.96 × 163,211.04
  4. Step 4: Simplify right side
    284,030.40x = 63,975,620,141.80
  5. Step 5: Solve for x
    x = 63,975,620,141.80/284,030.40
  6. Step 6: Final answer
    x = 225,242.16

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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.