Home / 314,728.93-434,320.45-171,490.15

Finding the Fourth Proportional to 314,728.93, 434,320.45 and 171,490.15

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Solution

The fourth proportional to 314,728.93, 434,320.45 and 171,490.15 is: 236,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,728.93 : 434,320.45 = 171,490.15 : x
  2. Step 2: Convert to fraction form
    314,728.93/434,320.45 = 171,490.15/x
  3. Step 3: Cross multiply
    314,728.93x = 434,320.45 × 171,490.15
  4. Step 4: Simplify right side
    314,728.93x = 74,481,679,118.57
  5. Step 5: Solve for x
    x = 74,481,679,118.57/314,728.93
  6. Step 6: Final answer
    x = 236,653.42

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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.