Home / 286,669.10-429,412.35-167,980.70

Finding the Fourth Proportional to 286,669.10, 429,412.35 and 167,980.70

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Solution

The fourth proportional to 286,669.10, 429,412.35 and 167,980.70 is: 251,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,669.10 : 429,412.35 = 167,980.70 : x
  2. Step 2: Convert to fraction form
    286,669.10/429,412.35 = 167,980.70/x
  3. Step 3: Cross multiply
    286,669.10x = 429,412.35 × 167,980.70
  4. Step 4: Simplify right side
    286,669.10x = 72,132,987,141.65
  5. Step 5: Solve for x
    x = 72,132,987,141.65/286,669.10
  6. Step 6: Final answer
    x = 251,624.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.