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Finding the Fourth Proportional to 346,706.10, 520,059.15 and 303,851.70

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Solution

The fourth proportional to 346,706.10, 520,059.15 and 303,851.70 is: 455,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,706.10 : 520,059.15 = 303,851.70 : x
  2. Step 2: Convert to fraction form
    346,706.10/520,059.15 = 303,851.70/x
  3. Step 3: Cross multiply
    346,706.10x = 520,059.15 × 303,851.70
  4. Step 4: Simplify right side
    346,706.10x = 158,020,856,828.06
  5. Step 5: Solve for x
    x = 158,020,856,828.06/346,706.10
  6. Step 6: Final answer
    x = 455,777.55

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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.