Home / 279,281.18-385,447.56-158,452.40

Finding the Fourth Proportional to 279,281.18, 385,447.56 and 158,452.40

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Solution

The fourth proportional to 279,281.18, 385,447.56 and 158,452.40 is: 218,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,281.18 : 385,447.56 = 158,452.40 : x
  2. Step 2: Convert to fraction form
    279,281.18/385,447.56 = 158,452.40/x
  3. Step 3: Cross multiply
    279,281.18x = 385,447.56 × 158,452.40
  4. Step 4: Simplify right side
    279,281.18x = 61,075,090,956.14
  5. Step 5: Solve for x
    x = 61,075,090,956.14/279,281.18
  6. Step 6: Final answer
    x = 218,686.74

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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.