Home / 283,740.04-391,563.90-156,420.16

Finding the Fourth Proportional to 283,740.04, 391,563.90 and 156,420.16

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Solution

The fourth proportional to 283,740.04, 391,563.90 and 156,420.16 is: 215,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,740.04 : 391,563.90 = 156,420.16 : x
  2. Step 2: Convert to fraction form
    283,740.04/391,563.90 = 156,420.16/x
  3. Step 3: Cross multiply
    283,740.04x = 391,563.90 × 156,420.16
  4. Step 4: Simplify right side
    283,740.04x = 61,248,487,888.22
  5. Step 5: Solve for x
    x = 61,248,487,888.22/283,740.04
  6. Step 6: Final answer
    x = 215,861.28

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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.