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Finding the Fourth Proportional to 370,927.80, 556,391.70 and 134,440.20

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Solution

The fourth proportional to 370,927.80, 556,391.70 and 134,440.20 is: 201,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,927.80 : 556,391.70 = 134,440.20 : x
  2. Step 2: Convert to fraction form
    370,927.80/556,391.70 = 134,440.20/x
  3. Step 3: Cross multiply
    370,927.80x = 556,391.70 × 134,440.20
  4. Step 4: Simplify right side
    370,927.80x = 74,801,411,426.34
  5. Step 5: Solve for x
    x = 74,801,411,426.34/370,927.80
  6. Step 6: Final answer
    x = 201,660.30

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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.