Home / 279,782.16-386,099.08-152,457.72

Finding the Fourth Proportional to 279,782.16, 386,099.08 and 152,457.72

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Solution

The fourth proportional to 279,782.16, 386,099.08 and 152,457.72 is: 210,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,782.16 : 386,099.08 = 152,457.72 : x
  2. Step 2: Convert to fraction form
    279,782.16/386,099.08 = 152,457.72/x
  3. Step 3: Cross multiply
    279,782.16x = 386,099.08 × 152,457.72
  4. Step 4: Simplify right side
    279,782.16x = 58,863,785,430.90
  5. Step 5: Solve for x
    x = 58,863,785,430.90/279,782.16
  6. Step 6: Final answer
    x = 210,391.49

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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.