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Finding the Fourth Proportional to 283,925.91, 391,817.01 and 163,075.05

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Solution

The fourth proportional to 283,925.91, 391,817.01 and 163,075.05 is: 225,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,925.91 : 391,817.01 = 163,075.05 : x
  2. Step 2: Convert to fraction form
    283,925.91/391,817.01 = 163,075.05/x
  3. Step 3: Cross multiply
    283,925.91x = 391,817.01 × 163,075.05
  4. Step 4: Simplify right side
    283,925.91x = 63,895,578,496.60
  5. Step 5: Solve for x
    x = 63,895,578,496.60/283,925.91
  6. Step 6: Final answer
    x = 225,043.14

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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.