Home / 380,358.98-524,901.33-208,274.07

Finding the Fourth Proportional to 380,358.98, 524,901.33 and 208,274.07

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Solution

The fourth proportional to 380,358.98, 524,901.33 and 208,274.07 is: 287,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,358.98 : 524,901.33 = 208,274.07 : x
  2. Step 2: Convert to fraction form
    380,358.98/524,901.33 = 208,274.07/x
  3. Step 3: Cross multiply
    380,358.98x = 524,901.33 × 208,274.07
  4. Step 4: Simplify right side
    380,358.98x = 109,323,336,347.51
  5. Step 5: Solve for x
    x = 109,323,336,347.51/380,358.98
  6. Step 6: Final answer
    x = 287,421.47

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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.