Home / 292,547.19-438,822.46-90,140.65

Finding the Fourth Proportional to 292,547.19, 438,822.46 and 90,140.65

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Solution

The fourth proportional to 292,547.19, 438,822.46 and 90,140.65 is: 135,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,547.19 : 438,822.46 = 90,140.65 : x
  2. Step 2: Convert to fraction form
    292,547.19/438,822.46 = 90,140.65/x
  3. Step 3: Cross multiply
    292,547.19x = 438,822.46 × 90,140.65
  4. Step 4: Simplify right side
    292,547.19x = 39,555,740,794.62
  5. Step 5: Solve for x
    x = 39,555,740,794.62/292,547.19
  6. Step 6: Final answer
    x = 135,211.49

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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.