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Finding the Fourth Proportional to 377,038.19, 520,322.64 and 207,276.59

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Solution

The fourth proportional to 377,038.19, 520,322.64 and 207,276.59 is: 286,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,038.19 : 520,322.64 = 207,276.59 : x
  2. Step 2: Convert to fraction form
    377,038.19/520,322.64 = 207,276.59/x
  3. Step 3: Cross multiply
    377,038.19x = 520,322.64 × 207,276.59
  4. Step 4: Simplify right side
    377,038.19x = 107,850,701,482.62
  5. Step 5: Solve for x
    x = 107,850,701,482.62/377,038.19
  6. Step 6: Final answer
    x = 286,047.15

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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.