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Finding the Fourth Proportional to 286,966.80, 429,931.80 and 245,494.80

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Solution

The fourth proportional to 286,966.80, 429,931.80 and 245,494.80 is: 367,798.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,966.80 : 429,931.80 = 245,494.80 : x
  2. Step 2: Convert to fraction form
    286,966.80/429,931.80 = 245,494.80/x
  3. Step 3: Cross multiply
    286,966.80x = 429,931.80 × 245,494.80
  4. Step 4: Simplify right side
    286,966.80x = 105,546,021,254.64
  5. Step 5: Solve for x
    x = 105,546,021,254.64/286,966.80
  6. Step 6: Final answer
    x = 367,798.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.