Home / 283,021.79-390,749.37-175,705.70

Finding the Fourth Proportional to 283,021.79, 390,749.37 and 175,705.70

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Solution

The fourth proportional to 283,021.79, 390,749.37 and 175,705.70 is: 242,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,021.79 : 390,749.37 = 175,705.70 : x
  2. Step 2: Convert to fraction form
    283,021.79/390,749.37 = 175,705.70/x
  3. Step 3: Cross multiply
    283,021.79x = 390,749.37 × 175,705.70
  4. Step 4: Simplify right side
    283,021.79x = 68,656,891,580.41
  5. Step 5: Solve for x
    x = 68,656,891,580.41/283,021.79
  6. Step 6: Final answer
    x = 242,585.18

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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.