Home / 318,904.80-440,088.60-175,664.40

Finding the Fourth Proportional to 318,904.80, 440,088.60 and 175,664.40

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Solution

The fourth proportional to 318,904.80, 440,088.60 and 175,664.40 is: 242,416.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,904.80 : 440,088.60 = 175,664.40 : x
  2. Step 2: Convert to fraction form
    318,904.80/440,088.60 = 175,664.40/x
  3. Step 3: Cross multiply
    318,904.80x = 440,088.60 × 175,664.40
  4. Step 4: Simplify right side
    318,904.80x = 77,307,899,865.84
  5. Step 5: Solve for x
    x = 77,307,899,865.84/318,904.80
  6. Step 6: Final answer
    x = 242,416.86

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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.