Home / 390,217.93-538,587.55-237,223.69

Finding the Fourth Proportional to 390,217.93, 538,587.55 and 237,223.69

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Solution

The fourth proportional to 390,217.93, 538,587.55 and 237,223.69 is: 327,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,217.93 : 538,587.55 = 237,223.69 : x
  2. Step 2: Convert to fraction form
    390,217.93/538,587.55 = 237,223.69/x
  3. Step 3: Cross multiply
    390,217.93x = 538,587.55 × 237,223.69
  4. Step 4: Simplify right side
    390,217.93x = 127,765,725,616.31
  5. Step 5: Solve for x
    x = 127,765,725,616.31/390,217.93
  6. Step 6: Final answer
    x = 327,421.46

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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.