Home / 373,128.94-514,931.70-212,011.28

Finding the Fourth Proportional to 373,128.94, 514,931.70 and 212,011.28

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Solution

The fourth proportional to 373,128.94, 514,931.70 and 212,011.28 is: 292,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,128.94 : 514,931.70 = 212,011.28 : x
  2. Step 2: Convert to fraction form
    373,128.94/514,931.70 = 212,011.28/x
  3. Step 3: Cross multiply
    373,128.94x = 514,931.70 × 212,011.28
  4. Step 4: Simplify right side
    373,128.94x = 109,171,328,980.95
  5. Step 5: Solve for x
    x = 109,171,328,980.95/373,128.94
  6. Step 6: Final answer
    x = 292,583.39

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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.