Home / 303,485.10-455,227.65-145,632.30

Finding the Fourth Proportional to 303,485.10, 455,227.65 and 145,632.30

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Solution

The fourth proportional to 303,485.10, 455,227.65 and 145,632.30 is: 218,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,485.10 : 455,227.65 = 145,632.30 : x
  2. Step 2: Convert to fraction form
    303,485.10/455,227.65 = 145,632.30/x
  3. Step 3: Cross multiply
    303,485.10x = 455,227.65 × 145,632.30
  4. Step 4: Simplify right side
    303,485.10x = 66,295,849,693.10
  5. Step 5: Solve for x
    x = 66,295,849,693.10/303,485.10
  6. Step 6: Final answer
    x = 218,448.45

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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.