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Finding the Fourth Proportional to 377,117.56, 520,424.16 and 207,362.60

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Solution

The fourth proportional to 377,117.56, 520,424.16 and 207,362.60 is: 286,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,117.56 : 520,424.16 = 207,362.60 : x
  2. Step 2: Convert to fraction form
    377,117.56/520,424.16 = 207,362.60/x
  3. Step 3: Cross multiply
    377,117.56x = 520,424.16 × 207,362.60
  4. Step 4: Simplify right side
    377,117.56x = 107,916,506,920.42
  5. Step 5: Solve for x
    x = 107,916,506,920.42/377,117.56
  6. Step 6: Final answer
    x = 286,161.45

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1.5x scale

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.