Home / 230,681.51-318,340.74-135,188.30

Finding the Fourth Proportional to 230,681.51, 318,340.74 and 135,188.30

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Solution

The fourth proportional to 230,681.51, 318,340.74 and 135,188.30 is: 186,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,681.51 : 318,340.74 = 135,188.30 : x
  2. Step 2: Convert to fraction form
    230,681.51/318,340.74 = 135,188.30/x
  3. Step 3: Cross multiply
    230,681.51x = 318,340.74 × 135,188.30
  4. Step 4: Simplify right side
    230,681.51x = 43,035,943,461.34
  5. Step 5: Solve for x
    x = 43,035,943,461.34/230,681.51
  6. Step 6: Final answer
    x = 186,560.00

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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.