Home / 377,981.04-521,594.64-208,211.52

Finding the Fourth Proportional to 377,981.04, 521,594.64 and 208,211.52

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Solution

The fourth proportional to 377,981.04, 521,594.64 and 208,211.52 is: 287,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,981.04 : 521,594.64 = 208,211.52 : x
  2. Step 2: Convert to fraction form
    377,981.04/521,594.64 = 208,211.52/x
  3. Step 3: Cross multiply
    377,981.04x = 521,594.64 × 208,211.52
  4. Step 4: Simplify right side
    377,981.04x = 108,602,012,818.25
  5. Step 5: Solve for x
    x = 108,602,012,818.25/377,981.04
  6. Step 6: Final answer
    x = 287,321.32

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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.