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Finding the Fourth Proportional to 283,720.94, 391,570.37 and 162,900.10

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Solution

The fourth proportional to 283,720.94, 391,570.37 and 162,900.10 is: 224,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,720.94 : 391,570.37 = 162,900.10 : x
  2. Step 2: Convert to fraction form
    283,720.94/391,570.37 = 162,900.10/x
  3. Step 3: Cross multiply
    283,720.94x = 391,570.37 × 162,900.10
  4. Step 4: Simplify right side
    283,720.94x = 63,786,852,430.04
  5. Step 5: Solve for x
    x = 63,786,852,430.04/283,720.94
  6. Step 6: Final answer
    x = 224,822.50

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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.