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Finding the Fourth Proportional to 254,312.70, 381,521.63 and 83,547.35

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Solution

The fourth proportional to 254,312.70, 381,521.63 and 83,547.35 is: 125,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,312.70 : 381,521.63 = 83,547.35 : x
  2. Step 2: Convert to fraction form
    254,312.70/381,521.63 = 83,547.35/x
  3. Step 3: Cross multiply
    254,312.70x = 381,521.63 × 83,547.35
  4. Step 4: Simplify right side
    254,312.70x = 31,875,121,154.18
  5. Step 5: Solve for x
    x = 31,875,121,154.18/254,312.70
  6. Step 6: Final answer
    x = 125,338.30

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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.