Home / 290,253.08-435,547.77-121,758.50

Finding the Fourth Proportional to 290,253.08, 435,547.77 and 121,758.50

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Solution

The fourth proportional to 290,253.08, 435,547.77 and 121,758.50 is: 182,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,253.08 : 435,547.77 = 121,758.50 : x
  2. Step 2: Convert to fraction form
    290,253.08/435,547.77 = 121,758.50/x
  3. Step 3: Cross multiply
    290,253.08x = 435,547.77 × 121,758.50
  4. Step 4: Simplify right side
    290,253.08x = 53,031,643,153.55
  5. Step 5: Solve for x
    x = 53,031,643,153.55/290,253.08
  6. Step 6: Final answer
    x = 182,708.29

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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.