Home / 315,132.14-434,888.26-171,897.30

Finding the Fourth Proportional to 315,132.14, 434,888.26 and 171,897.30

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Solution

The fourth proportional to 315,132.14, 434,888.26 and 171,897.30 is: 237,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,132.14 : 434,888.26 = 171,897.30 : x
  2. Step 2: Convert to fraction form
    315,132.14/434,888.26 = 171,897.30/x
  3. Step 3: Cross multiply
    315,132.14x = 434,888.26 × 171,897.30
  4. Step 4: Simplify right side
    315,132.14x = 74,756,117,695.70
  5. Step 5: Solve for x
    x = 74,756,117,695.70/315,132.14
  6. Step 6: Final answer
    x = 237,221.50

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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.