Home / 369,749.30-510,242.28-208,602.20

Finding the Fourth Proportional to 369,749.30, 510,242.28 and 208,602.20

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Solution

The fourth proportional to 369,749.30, 510,242.28 and 208,602.20 is: 287,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,749.30 : 510,242.28 = 208,602.20 : x
  2. Step 2: Convert to fraction form
    369,749.30/510,242.28 = 208,602.20/x
  3. Step 3: Cross multiply
    369,749.30x = 510,242.28 × 208,602.20
  4. Step 4: Simplify right side
    369,749.30x = 106,437,662,141.02
  5. Step 5: Solve for x
    x = 106,437,662,141.02/369,749.30
  6. Step 6: Final answer
    x = 287,864.40

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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.