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Finding the Fourth Proportional to 353,802.74, 530,911.47 and 253,855.22

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Solution

The fourth proportional to 353,802.74, 530,911.47 and 253,855.22 is: 380,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,802.74 : 530,911.47 = 253,855.22 : x
  2. Step 2: Convert to fraction form
    353,802.74/530,911.47 = 253,855.22/x
  3. Step 3: Cross multiply
    353,802.74x = 530,911.47 × 253,855.22
  4. Step 4: Simplify right side
    353,802.74x = 134,774,648,017.37
  5. Step 5: Solve for x
    x = 134,774,648,017.37/353,802.74
  6. Step 6: Final answer
    x = 380,931.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.