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Finding the Fourth Proportional to 283,329.72, 390,875.71 and 187,670.34

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Solution

The fourth proportional to 283,329.72, 390,875.71 and 187,670.34 is: 258,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,329.72 : 390,875.71 = 187,670.34 : x
  2. Step 2: Convert to fraction form
    283,329.72/390,875.71 = 187,670.34/x
  3. Step 3: Cross multiply
    283,329.72x = 390,875.71 × 187,670.34
  4. Step 4: Simplify right side
    283,329.72x = 73,355,777,393.44
  5. Step 5: Solve for x
    x = 73,355,777,393.44/283,329.72
  6. Step 6: Final answer
    x = 258,906.05

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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.