Home / 380,425.92-524,981.28-210,656.40

Finding the Fourth Proportional to 380,425.92, 524,981.28 and 210,656.40

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Solution

The fourth proportional to 380,425.92, 524,981.28 and 210,656.40 is: 290,702.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,425.92 : 524,981.28 = 210,656.40 : x
  2. Step 2: Convert to fraction form
    380,425.92/524,981.28 = 210,656.40/x
  3. Step 3: Cross multiply
    380,425.92x = 524,981.28 × 210,656.40
  4. Step 4: Simplify right side
    380,425.92x = 110,590,666,512.19
  5. Step 5: Solve for x
    x = 110,590,666,512.19/380,425.92
  6. Step 6: Final answer
    x = 290,702.24

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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.