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Finding the Fourth Proportional to 377,482.50, 520,929.45 and 207,720.36

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Solution

The fourth proportional to 377,482.50, 520,929.45 and 207,720.36 is: 286,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,482.50 : 520,929.45 = 207,720.36 : x
  2. Step 2: Convert to fraction form
    377,482.50/520,929.45 = 207,720.36/x
  3. Step 3: Cross multiply
    377,482.50x = 520,929.45 × 207,720.36
  4. Step 4: Simplify right side
    377,482.50x = 108,207,652,888.60
  5. Step 5: Solve for x
    x = 108,207,652,888.60/377,482.50
  6. Step 6: Final answer
    x = 286,656.08

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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.