Home / 283,218.17-390,878.39-170,048.21

Finding the Fourth Proportional to 283,218.17, 390,878.39 and 170,048.21

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Solution

The fourth proportional to 283,218.17, 390,878.39 and 170,048.21 is: 234,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,218.17 : 390,878.39 = 170,048.21 : x
  2. Step 2: Convert to fraction form
    283,218.17/390,878.39 = 170,048.21/x
  3. Step 3: Cross multiply
    283,218.17x = 390,878.39 × 170,048.21
  4. Step 4: Simplify right side
    283,218.17x = 66,468,169,017.91
  5. Step 5: Solve for x
    x = 66,468,169,017.91/283,218.17
  6. Step 6: Final answer
    x = 234,688.93

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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.