Home / 145,386.40-218,079.60-144,464.80

Finding the Fourth Proportional to 145,386.40, 218,079.60 and 144,464.80

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Solution

The fourth proportional to 145,386.40, 218,079.60 and 144,464.80 is: 216,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,386.40 : 218,079.60 = 144,464.80 : x
  2. Step 2: Convert to fraction form
    145,386.40/218,079.60 = 144,464.80/x
  3. Step 3: Cross multiply
    145,386.40x = 218,079.60 × 144,464.80
  4. Step 4: Simplify right side
    145,386.40x = 31,504,825,798.08
  5. Step 5: Solve for x
    x = 31,504,825,798.08/145,386.40
  6. Step 6: Final answer
    x = 216,697.20

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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.