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Finding the Fourth Proportional to 377,064.66, 520,352.76 and 207,300

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Solution

The fourth proportional to 377,064.66, 520,352.76 and 207,300 is: 286,075.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,064.66 : 520,352.76 = 207,300 : x
  2. Step 2: Convert to fraction form
    377,064.66/520,352.76 = 207,300/x
  3. Step 3: Cross multiply
    377,064.66x = 520,352.76 × 207,300
  4. Step 4: Simplify right side
    377,064.66x = 107,869,127,148
  5. Step 5: Solve for x
    x = 107,869,127,148/377,064.66
  6. Step 6: Final answer
    x = 286,075.94

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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.