Home / 205,031.40-307,547.10-188,442.60

Finding the Fourth Proportional to 205,031.40, 307,547.10 and 188,442.60

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Solution

The fourth proportional to 205,031.40, 307,547.10 and 188,442.60 is: 282,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,031.40 : 307,547.10 = 188,442.60 : x
  2. Step 2: Convert to fraction form
    205,031.40/307,547.10 = 188,442.60/x
  3. Step 3: Cross multiply
    205,031.40x = 307,547.10 × 188,442.60
  4. Step 4: Simplify right side
    205,031.40x = 57,954,975,146.46
  5. Step 5: Solve for x
    x = 57,954,975,146.46/205,031.40
  6. Step 6: Final answer
    x = 282,663.90

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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.