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Finding the Fourth Proportional to 370,517.37, 511,307.29 and 209,368.93

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Solution

The fourth proportional to 370,517.37, 511,307.29 and 209,368.93 is: 288,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,517.37 : 511,307.29 = 209,368.93 : x
  2. Step 2: Convert to fraction form
    370,517.37/511,307.29 = 209,368.93/x
  3. Step 3: Cross multiply
    370,517.37x = 511,307.29 × 209,368.93
  4. Step 4: Simplify right side
    370,517.37x = 107,051,860,208.50
  5. Step 5: Solve for x
    x = 107,051,860,208.50/370,517.37
  6. Step 6: Final answer
    x = 288,925.35

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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.