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Finding the Fourth Proportional to 286,000.64, 394,675.63 and 158,673.50

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Solution

The fourth proportional to 286,000.64, 394,675.63 and 158,673.50 is: 218,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,000.64 : 394,675.63 = 158,673.50 : x
  2. Step 2: Convert to fraction form
    286,000.64/394,675.63 = 158,673.50/x
  3. Step 3: Cross multiply
    286,000.64x = 394,675.63 × 158,673.50
  4. Step 4: Simplify right side
    286,000.64x = 62,624,563,576.81
  5. Step 5: Solve for x
    x = 62,624,563,576.81/286,000.64
  6. Step 6: Final answer
    x = 218,966.52

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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.