Home / 301,088.18-451,588.30-87,798.78

Finding the Fourth Proportional to 301,088.18, 451,588.30 and 87,798.78

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Solution

The fourth proportional to 301,088.18, 451,588.30 and 87,798.78 is: 131,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,088.18 : 451,588.30 = 87,798.78 : x
  2. Step 2: Convert to fraction form
    301,088.18/451,588.30 = 87,798.78/x
  3. Step 3: Cross multiply
    301,088.18x = 451,588.30 × 87,798.78
  4. Step 4: Simplify right side
    301,088.18x = 39,648,901,802.27
  5. Step 5: Solve for x
    x = 39,648,901,802.27/301,088.18
  6. Step 6: Final answer
    x = 131,685.35

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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.