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Finding the Fourth Proportional to 630,802.80, 946,355.04 and 210,082.32

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Solution

The fourth proportional to 630,802.80, 946,355.04 and 210,082.32 is: 315,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,802.80 : 946,355.04 = 210,082.32 : x
  2. Step 2: Convert to fraction form
    630,802.80/946,355.04 = 210,082.32/x
  3. Step 3: Cross multiply
    630,802.80x = 946,355.04 × 210,082.32
  4. Step 4: Simplify right side
    630,802.80x = 198,812,462,346.89
  5. Step 5: Solve for x
    x = 198,812,462,346.89/630,802.80
  6. Step 6: Final answer
    x = 315,173.72

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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.