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Finding the Fourth Proportional to 346,807.80, 520,211.70 and 310,066.20

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Solution

The fourth proportional to 346,807.80, 520,211.70 and 310,066.20 is: 465,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,807.80 : 520,211.70 = 310,066.20 : x
  2. Step 2: Convert to fraction form
    346,807.80/520,211.70 = 310,066.20/x
  3. Step 3: Cross multiply
    346,807.80x = 520,211.70 × 310,066.20
  4. Step 4: Simplify right side
    346,807.80x = 161,300,065,014.54
  5. Step 5: Solve for x
    x = 161,300,065,014.54/346,807.80
  6. Step 6: Final answer
    x = 465,099.30

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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.